Illuminated sign



FIG. 1 is a top right front isometric view showing my new design for an illuminated sign;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for an illuminated sign, as shown and described. 